• St. Michael's Cemetery (1855)
• Imperial Plaza (former Imperial Oil Building, 1957)
• St. Clair station (1954)

Yonge-St. Clair is a midtown Toronto neighbourhood centred on the intersection of Yonge Street and St. Clair Avenue. In 1837 the Heath family bought 40 acres at the northwest corner and named their estate Deer Park, and the property later included a racetrack, a school and a hotel where visitors could feed deer. In 1855 the Roman Catholic Diocese opened the 10-acre St. Michael's Cemetery along the west side of Yonge Street south of St. Clair; it holds about 29,000 graves. Deer Park was annexed to the City of Toronto in 1908, opening it to new development.

The Yonge subway replaced the crowded Yonge streetcar in 1954, and by mid-century the intersection had changed from a low-rise concession road into a commercial and transportation hub. The area's first high-rise office building, the Imperial Oil Building at 111 St. Clair Avenue West, designed by Mathers and Haldenby and completed in 1957, was built as a potential alternative hospital and bomb shelter in the event of a nuclear attack. It is now the Imperial Plaza residences and won a Heritage Toronto award in 2016.

The Yonge-St. Clair tee is for the neighbours who know the corner of Yonge and St. Clair, from St. Michael's Cemetery to the old Imperial Oil tower.